DOKK / manpages / debian 10 / systemtap-doc / probe::vm.write_shared_copy.3stap.en
PROBE::VM.WRITE_SH(3stap) Memory Tapset PROBE::VM.WRITE_SH(3stap)

probe::vm.write_shared_copy - Page copy for shared page write

vm.write_shared_copy 

zero

boolean indicating whether it is a zero page (can do a clear instead of a copy)

name

Name of the probe point

address

The address of the shared write

The process attempting the write.

Fires when a write to a shared page requires a page copy. This is always preceded by a vm.write_shared.

tapset::memory(3stap)

October 2018 SystemTap Tapset Reference